CN110234532B - Vehicle-mounted structure of non-contact power receiving device - Google Patents

Vehicle-mounted structure of non-contact power receiving device Download PDF

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Publication number
CN110234532B
CN110234532B CN201780085100.0A CN201780085100A CN110234532B CN 110234532 B CN110234532 B CN 110234532B CN 201780085100 A CN201780085100 A CN 201780085100A CN 110234532 B CN110234532 B CN 110234532B
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China
Prior art keywords
power receiving
receiving coil
vehicle
coil unit
power
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CN201780085100.0A
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Chinese (zh)
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CN110234532A (en
Inventor
浅井明宽
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/005—Current collectors for power supply lines of electrically-propelled vehicles without mechanical contact between the collector and the power supply line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • B60L53/122—Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66—Arrangements of batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The power receiving coil is a toroidal coil having a hollow portion formed in a radial center portion of the power receiving coil. The power receiving coil, the resonant capacitor, and the magnetic member are disposed inside the power receiving coil unit to form a non-contact power receiving device. The power receiving coil unit is mounted to a member that is a frame member of a vehicle body. A hollow portion corresponding portion in the power receiving coil unit corresponding to the hollow portion of the power receiving coil abuts against the member.

Description

Vehicle-mounted structure of non-contact power receiving device
Technical Field
The present invention relates to a vehicle-mounted structure of a non-contact power receiving device.
Background
Conventionally, a contactless power feeding device including a contactless power transmitting device provided on a road surface and a contactless power receiving device mounted on a vehicle is known (for example, see patent document 1). The non-contact power receiving device has a power receiving coil unit.
In patent document 1, the power receiving coil unit is attached so as to straddle a pair of right and left base portions of a tunnel portion formed in a floor of a vehicle. Specifically, the tunnel portion and the base portion extend in the vehicle front-rear direction, and both right and left end portions of the power receiving coil unit are fastened to the pair of right and left base portions with bolts.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-112899
Disclosure of Invention
However, the power receiving coil unit includes a power receiving coil, and a radially central portion of the power receiving coil is formed as a hollow portion. Therefore, the rigidity of the portion of the power receiving coil unit corresponding to the radially central portion of the power receiving coil is lower than the rigidity of the end portions. Therefore, the center portion in the left-right direction of the power receiving coil unit, in which both left and right end portions are supported, may vibrate in the up-down direction during vehicle traveling, and generate abnormal noise.
Therefore, the present invention provides an in-vehicle structure of a non-contact power receiving device that can maintain high holding rigidity when a power receiving coil unit is mounted on a vehicle.
In the vehicle-mounted structure of the non-contact power receiving device according to the present invention, the power receiving coil unit is mounted on a member that is a skeleton member of the vehicle body. The power receiving coil unit has a power receiving coil. The power receiving coil is a toroidal coil having a hollow portion formed in a center portion in a radial direction. A hollow portion corresponding to the hollow portion of the power receiving coil in the portion of the power receiving coil unit abuts against the member.
ADVANTAGEOUS EFFECTS OF INVENTION
In the present invention, the holding rigidity of the power receiving coil unit is improved, and vibration and the like of the power receiving coil unit during traveling of the vehicle are reduced.
Drawings
Fig. 1 is an overall view showing a contactless power feeding device of the present invention.
Fig. 2 is a bottom view of the vicinity of the mounting portion of the power receiving coil unit according to embodiment 1, as viewed from below.
Fig. 3 is a perspective view showing a suspension member in which the power receiving coil unit according to embodiment 1 is incorporated.
Fig. 4 is an exploded perspective view of fig. 3.
Fig. 5 is an exploded perspective view of the power receiving coil unit according to embodiment 1.
Fig. 6A is a sectional view taken along line a-a in fig. 3.
Fig. 6B is a sectional view taken along line B-B in fig. 3.
Fig. 6C is a sectional view taken along line C-C in fig. 3.
Fig. 6D is a sectional view taken along line D-D in fig. 3.
Fig. 6E is a sectional view taken along line E-E in fig. 3.
Fig. 7 is an exploded perspective view of the power receiving coil unit according to embodiment 2.
Fig. 8A is a cross-sectional view of the power receiving coil unit according to embodiment 2, which corresponds to fig. 6A of embodiment 1.
Fig. 8B is a cross-sectional view of the power receiving coil unit according to embodiment 2, and corresponds to fig. 6D of embodiment 1.
Fig. 9 is an enlarged sectional view of a main portion of fig. 8A.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[ embodiment 1 ]
The contactless power feeding device 1 shown in fig. 1 includes a contactless power transmitting device 3 provided in a parking space and a contactless power receiving device 7 mounted on a vehicle 5. The vehicle 5 can be applied to, for example, an electric vehicle, a hybrid vehicle, and the like.
The non-contact power transmission device 3 includes: a power transmission coil unit 11 provided on a road surface 9 of the parking space and having a power transmission coil; a power supply device 13; and a wiring 15 connecting the power transmission coil unit 11 and the power supply device 13. The power transmission coil is mainly composed of a primary coil formed of a conductive wire.
The non-contact power receiving device 7 includes a power receiving coil unit 17, a rectifier 19, a relay box 21, a battery 23, an inverter 25, a motor 27, and a reduction gear 29. The power receiving coil unit 17 includes a power receiving coil 83, and the structure of the power receiving coil unit 17 will be described in detail later.
The rectifier 19 is connected to the terminal block 31 of the power receiving coil unit 17 via the 1 st wire harness 33. The rectifier 19 includes a rectifier circuit for rectifying ac power received through the power receiving coil 83 into dc power. The 1 st harness 33 is disposed in a slack state having an extra length in a normal state (a state other than an abnormal state such as a collision).
The relay box 21 has a relay switch. By opening the relay switch, the main circuit system including the battery 23 can be disconnected from the power receiving coil and the rectifier 19, which are the charging circuit unit.
The battery 23 is configured by connecting a plurality of secondary batteries. The battery 23 is an electric power source of the vehicle 5. The battery 23 and the relay box 21 are connected by a 2 nd wire harness 35. The 2 nd wire harness 35 is laid in a slack state having an extra length in a normal state (a state other than an abnormal state such as a collision).
The inverter 25 is a control circuit such as a PWM control circuit having switching elements such as IGBTs. The inverter 25 converts the dc power output from the battery 23 into ac power based on the switching control signal, and supplies the ac power to the motor 27. The inverter 25 and the battery 23 are connected by a 3 rd wire harness 37. The 3 rd wire harness 37 is laid in a slack state having an extra length in a normal state (a state other than an abnormal state such as a collision).
The motor 27 is constituted by, for example, a three-phase alternating-current motor. The motor 27 is a drive source for driving the vehicle 5. The decelerator 29 adjusts the rotation speed of the motor 27 to an appropriate value. In the vehicle 5 of fig. 1, the front portion of the power receiving coil unit 17 is disposed so as to overlap the front wheels 39, and the power receiving coil unit 17 is disposed inward of the front wheels 39 in the vehicle width direction, as viewed from the side.
As shown in fig. 2, a pair of left and right side sills 41 extending in the front-rear direction are provided on the sides of the battery 23. A pair of left and right hood side panel supports (japanese: フードリッヂサポート)43 are provided in front of the rocker 41 in the front-rear direction. A rear end 45a of the dash panel 45 is disposed near the front end 23a of the battery 23. As shown in fig. 1 and 2, the rear portion of the dash panel 45 is joined to the lower side of the front portion of the floor panel 47 in a superposed manner. The dash panel 45 extends in the vertical direction and partitions the front passenger compartment 1F and the passenger compartment 1R.
As shown in fig. 2, a pair of left and right front side frames 49 extend in the front-rear direction. The rear end 49a of the front side member 49 is disposed near the front end 23a of the battery 23, and the front end 49b of the front side member 49 is disposed at the front end of the vehicle. A pair of left and right front cross members 51 are disposed at the front end of the vehicle. The coupling member 53 extends in the front-rear direction. The front portions of the left and right linking members 53 are linked by a front member 54 extending in the vehicle width direction. The rear portion 53a of the coupling member 53 is joined to a front leg portion 57 (see fig. 4) of the suspension member 55. A lower arm 59 extending in the vehicle width direction is coupled to the side portion of the suspension member 55 and the hood side panel stay 43.
As shown in fig. 3 and 4, the suspension member 55 is a member that is a framework member of the vehicle body, and has high rigidity. The suspension member 55 is configured to be coupled to the vehicle body at normal times and to be separable from the vehicle body when a predetermined collision load is input to the suspension member 55. The following description will be specifically made.
As shown in fig. 2, the suspension member 55 is integrally formed of a pair of left and right front leg portions 57 extending forward, a front connecting portion 61 connecting the base portions of the pair of left and right front leg portions 57 to each other in the vehicle width direction, a body side portion 63 extending rearward from the rear end of the front leg portion 57, and a rear connecting portion 65 connecting the rear ends of the body side portion 63 to each other in the vehicle width direction. The rear leg portion 67 extends rearward from the rear end of the main body side portion 63, and the rearward extension portion 69 extends rearward from the rear end of the main body side portion 63 on the inside of the rear leg portion 67 in the vehicle width direction. The rear leg 67 is fastened to the front side member 49 via a bracket, not shown. The rearward extension portion 69 is formed in a square tube shape, and has a bolt hole formed at a rear end portion. The weld nuts 71 are engaged in the bolt holes. A rear flange 73 is formed along the vehicle width direction at the rear portion of the front connecting portion 61, and bolt holes 75 are formed in the rear flange 73.
As shown in fig. 3 to 5 and 6A to 6E, the power receiving coil unit 17 includes a cover 81, a power receiving coil 83, a power transmitting coil side magnetic member 85, a vehicle side magnetic member 87, a resonant capacitor 89, and a substrate 91.
The cover 81 is integrally formed with a flat portion 93 formed in a rectangular shape in a plan view and a flange portion 95 bent at a peripheral edge of the flat portion 93 and extending upward. The cover 81 is formed of a non-magnetic material (e.g., resin) that does not interfere with electromagnetic induction.
The power receiving coil 83 is a toroidal coil formed by winding a conductive wire in a toroidal shape. The power receiving coil 83 is mainly composed of a secondary coil formed of a conductive wire. A hollow portion 97 having a rectangular shape is formed in a radial center of the power receiving coil 83 in a plan view.
The power transmission coil side magnetic member 85 (magnetic member) is a magnetic body formed as a flat plate having a rectangular shape in plan view. The power transmission coil side magnetic member 85 is housed inside the hollow portion 97 of the power receiving coil 83. The thickness of the power transmission coil side magnetic member 85 is set to be the same as the thickness of the power reception coil 83.
A vehicle-side magnetic member 87 (magnetic member) is disposed above the power transmission coil-side magnetic member 85 and the power reception coil 83. The vehicle-side magnetic member 87 is a magnetic body formed as a flat plate having a rectangular shape in a plan view. The size in the surface direction of the vehicle-side magnetic member 87 is set to be substantially the same as the size in the surface direction of the flat portion 93 of the cover 81. The vehicle-side magnetic member 87 is integrally formed by a front portion 99 disposed on the vehicle front side, a center portion 101 disposed rearward of the front portion 99, and a rear portion 103 disposed rearward of the center portion 101. The bottom surface of the vehicle-side magnetic member 87 is flat, and each portion of the upper surface has a level difference. Specifically, the following are set: the height Hc of the central portion 101 is the lowest, the height Hf of the front portion 99 is higher than the height Hc of the central portion 101, and the height Hr of the rear portion 103 is higher than the height Hf of the front portion 99. Namely, Hc < Hf < Hr. For example, ferrite or the like can be suitably used as the power transmission coil side magnetic member 85 and the vehicle side magnetic member 87.
The "power transmission coil side" of the power transmission coil side magnetic member 85 is closer to the "power transmission coil" than the "vehicle 5", and is a lower side (road surface side) in the present embodiment. The "vehicle side" of the vehicle-side magnetic member 87 is closer to the "vehicle 5" than the "power transmission coil", and is the upper side in the present embodiment. In this manner, the magnetic member includes the power transmission coil side magnetic member 85 and the vehicle side magnetic member 87.
The resonant capacitor 89 is connected in series with the power receiving coil 83, and forms a resonant circuit with the power receiving coil 83. The resonance capacitor 89 is an electronic component. The resonant capacitor 89 is placed on the upper side of the rear portion of the vehicle-side magnetic member 87.
The base plate 91 is integrally formed by a front portion 105, a center portion 107, and a rear portion 109, similarly to the vehicle-side magnetic member 87. The substrate 91 is formed of a non-magnetic material (e.g., aluminum) that does not interfere with electromagnetic induction. The following settings are set: the height of the central portion 107 is the lowest, the height of the front portion 105 is higher than the height of the central portion 107, and the height of the rear portion 109 is higher than the height of the front portion 105. A junction box 31 is disposed on the upper surface of the rear portion 109.
A connector portion 111 is formed on the front surface of the terminal block 31. The 1 st wire harness 33 is connected to the connector portion 111. A rectangular hollow portion corresponding portion 113 indicated by a two-dot chain line is provided from the central portion 107 to the rear portion 109. The hollow portion corresponding portion 113 is a portion facing the hollow portion 97 of the power receiving coil 83. Support pieces 115 are provided on both left and right sides of the rear portion 109 and on the front side of the front portion 105. Bolt holes 117 are formed in the support pieces 115.
According to the above configuration, the contactless power feeding device supplies power from the power transmission coil to the power reception coil 83 in a contactless manner by the electromagnetic induction (magnetic coupling) between the power transmission coil and the power reception coil 83.
The power receiving coil 83, the resonant capacitor 89, the power transmission coil side magnetic member 85, and the vehicle side magnetic member 87 (magnetic member) are disposed inside the power receiving coil unit 17.
Next, a procedure of attaching the power receiving coil unit 17 to the suspension member 55 will be described.
As shown in fig. 4, first, the support piece 115 at the rear portion of the power receiving coil unit 17 is fastened to the rear extension 69 of the suspension member 55 at the rear end portion of the power receiving coil unit 17. Specifically, the bolt BL is inserted from below into the bolt hole 117 of the support piece 115 at the rear of the power receiving coil unit 17, and the bolt BL is fastened to the weld nut 71 joined to the rear extension 69 of the suspension member 55.
Next, the support piece 115 at the front portion of the power receiving coil unit 17 is fastened to the rear flange 73 of the suspension member 55 at the front end portion of the power receiving coil unit 17. Specifically, the bolt BL is inserted from below into the bolt hole 117 of the support piece 115 in the front portion of the power receiving coil unit 17, and the bolt BL is fastened to the bolt hole 75 formed in the rear flange 73 of the suspension member 55.
In this manner, the power receiving coil unit 17 is attached to the suspension member 55, and the suspension member 55 is a member that is a skeleton member of the vehicle body.
As shown in fig. 6D and 6E, the rear connecting portion 65 of the suspension member 55 has a closed cross-sectional structure with high rigidity. Specifically, the suspension member 55 including the rear connecting portion 65 is entirely configured by joining the lower material 121 disposed on the lower side and the upper material 123 disposed on the upper side. In the rear connecting portion 65, both front and rear ends of the lower member 121 and both front and rear ends of the upper member 123 are joined to each other to form a hollow portion 125 inside. The hollow portion corresponding portion 113 set on the upper surface of the substrate 91 of the power receiving coil unit 17 abuts against the bottom surface 121a of the lower member 121. In the present embodiment, specifically, the bottom surface 121a of the lower member 121 abuts against the upper surface of the central portion 107 of the substrate 91. The rear end of the lower member 121 is disposed close to the vertical wall 127, and the vertical wall 127 is formed at the boundary between the central portion 107 and the rear portion 109 of the substrate 91.
As shown in fig. 6D and 6E, the resonant capacitor 89 is housed inside the rear portion 109 of the substrate 91. The arrangement height of the resonant capacitor 89 is the same as the arrangement height of the rear side coupling portion 65 of the suspension member 55. In this manner, the electronic component including the resonance capacitor 89 is disposed in the vicinity of the rear side coupling portion 65 (member) and behind the rear side coupling portion 65.
The operation and effect of embodiment 1 will be described below.
(1) The contactless power feeding device 1 according to embodiment 1 supplies power to the vehicle 5 in a contactless manner by magnetic coupling between a power transmission coil provided in a parking space and a power reception coil 83 mounted in a lower portion of a vehicle body of the vehicle 5. The power receiving coil 83 is a toroidal coil having a hollow 97 formed in the center in the radial direction. The power receiving coil 83, the resonance capacitor 89, the vehicle-side magnetic member 87, and the power transmission coil-side magnetic member 85 (magnetic member) are disposed inside the power receiving coil unit 17. The power receiving coil unit 17 is attached to a suspension member 55, and the suspension member 55 is a member that is a framework member of a vehicle body. A hollow portion corresponding portion 113 corresponding to the hollow portion 97 of the power receiving coil 83 in the portion of the power receiving coil unit 17 is brought into contact with the suspension member 55 (member).
The power receiving coil unit 17 includes a power receiving coil 83, and a hollow portion 97 is formed in a radially central portion of the power receiving coil 83. Therefore, when the end portion of the power receiving coil unit 17 is fixed to the vehicle body, the rigidity of the portion of the power receiving coil unit 17 corresponding to the hollow portion 97 of the power receiving coil 83 is reduced. Therefore, the portion of the power receiving coil unit 17 corresponding to the hollow portion 97 of the power receiving coil 83 is brought into contact with at least a part of the suspension member 55 (member) to improve the holding rigidity when held on the vehicle body. This reduces vibration and the like of the power receiving coil unit 17 during traveling of the vehicle.
(2) The suspension member 55 (member) is configured to be coupled to the vehicle body at normal times and to be separable from the vehicle body when a predetermined collision load is input to the suspension member 55. The power receiving coil unit 17 is attached to the suspension member 55.
Therefore, when a predetermined collision load is input to the suspension member 55 in the rearward direction, the power receiving coil unit 17 and the suspension member 55 move rearward in an integrated state. That is, the power receiving coil unit 17 and the suspension member 55 move rearward in a state in which the power receiving coil unit 17 and the suspension member 55 are integrated with each other, while keeping the relative distance between the power receiving coil unit 17 and the suspension member 55 constant. Therefore, the power receiving coil unit 17 is protected by the suspension member 55, and thus deformation, damage, and the like of the power receiving coil unit 17 can be suppressed.
(3) The magnetic members include a vehicle-side magnetic member 87 disposed on the vehicle side and a power transmission coil-side magnetic member 85 disposed on the power transmission coil side. The power transmission coil side magnetic member 85 is disposed in the hollow portion 97 of the power receiving coil 83.
The power transmission coil side magnetic member 85 is disposed on the power transmission coil side of the vehicle side magnetic member 87. Specifically, the power transmission coil side magnetic member 85 is disposed below the vehicle side magnetic member 87, and therefore is disposed in a position close to the power transmission coil. Therefore, the magnetic flux transmitted from the power transmission coil is positively and easily received by the power transmission coil-side magnetic member 85.
The power transmission coil side magnetic member 85 is disposed in the hollow portion 97 of the power reception coil 83. Therefore, by housing the power transmission coil side magnetic member 85 in such an unnecessary space inside the hollow portion 97 of the power receiving coil 83, it is possible to improve space efficiency when disposing components inside the power receiving coil unit 17.
(4) The electronic components including the resonance capacitor 89 are arranged in the vicinity of the rear of the suspension member 55 (member).
The suspension member 55 is a member that is a framework member of the vehicle body. Therefore, the electronic component including the resonance capacitor 89 is protected by the suspension member 55, and damage and the like of the electronic component can be suppressed.
(5) The rectifier 19 is connected to the junction box 31 by a 1 st wire harness 33. The 1 st harness 33 is disposed in a slack state having an extra length in a normal state (a state other than an abnormal state such as a collision).
Therefore, even if the power receiving coil unit 17 moves at the time of a vehicle collision, tension is less likely to act on the 1 st wire harness 33, and therefore, the 1 st wire harness 33 is less likely to break.
[ 2 nd embodiment ]
Next, embodiment 2 will be described, and the same reference numerals will be given to the same components as those of embodiment 1, and the description thereof will be omitted.
In embodiment 2, the power receiving coil unit 217 is fastened to the vehicle width direction center portion of the rear side coupling portion 65 of the suspension member 55 with a bolt BL.
As shown in fig. 7, in the power receiving coil unit 217 of embodiment 2, a convex portion 201 protruding upward is formed in the center of a flat portion 293 of a cover 281. The projection 201 is integrally formed by a cylindrical surface 203 projecting upward and wound in the circumferential direction and an upper surface 205 closing an upper opening of the cylindrical surface 203. A bolt hole 207 is formed in the radial center of the upper surface 205. A circular hole 209 having the same size as the outer diameter of the convex portion 201 is formed in the power transmission coil side magnetic member 285. Bolt holes 211, 213 are also formed in the vehicle-side magnetic member 287 and the base plate 291.
On the other hand, as shown in fig. 8A, 8B, and 9, a bolt hole and a weld nut 215 are provided in the vehicle width direction center portion of the lower material 121 of the rear connecting portion 65 of the suspension member 55.
Hereinafter, a procedure of fastening the power receiving coil unit 217 to the rear connecting portion 65 by bolts will be described.
First, the bolt BL is inserted from the lower side of the power receiving coil unit 217, and the tip portion of the bolt BL is projected from the substrate 291. Next, the tip end portion of the bolt BL is inserted into the bolt hole of the lower member 121 of the rear connecting portion 65 and fastened to the weld nut 215.
The operation and effect of embodiment 2 will be described below.
(1) The power receiving coil unit 217 is fastened to the vehicle width direction center portion of the rear side coupling portion 65 of the suspension member 55 with a bolt BL.
Thus, there is an effect that: the holding rigidity of the power receiving coil unit 217 held by the suspension member 55 is improved as compared with embodiment 1, and vibration and the like of the power receiving coil unit 17 during traveling of the vehicle are further reduced.
While the present invention has been described in terms of the embodiments, it is obvious to those skilled in the art that the present invention is not limited to the above description, and various modifications and improvements can be made.
For example, the power transmission coil side magnetic member 85 and the vehicle side magnetic member 87 constituting the magnetic members are configured separately, but the power transmission coil side magnetic member 85 and the vehicle side magnetic member 87 may be integrated.
Description of the reference numerals
5. A vehicle; 7. a non-contact power receiving device; 17. a power receiving coil unit; 55. suspension members (member members, body frame members); 83. a power receiving coil; 85. a power transmission coil side magnetic member (magnetic member); 87. a vehicle-side magnetic member (magnetic member); 89. a resonant capacitor; 97. a hollow part; 113. the hollow part corresponds to the part.

Claims (5)

1. A structure for mounting a non-contact power receiving device on a vehicle, the non-contact power receiving device having a power receiving coil that receives power in a non-contact manner by magnetic coupling with a power transmitting coil on a road surface side, the non-contact power receiving device being mounted on a lower portion of a vehicle body of the vehicle,
the power receiving coil is a toroidal coil having a hollow portion formed in a radially central portion thereof, the power receiving coil, the resonance capacitor, and the magnetic member are disposed inside a power receiving coil unit constituting the non-contact power receiving device,
the power receiving coil unit is mounted to a member that is a skeleton member of the vehicle body,
bringing a hollow portion corresponding to a hollow portion of the power receiving coil in a portion of the power receiving coil unit into contact with the member.
2. The vehicle-mounted structure of the non-contact power receiving device according to claim 1,
the member is a suspension member configured to be coupled to the vehicle body at a normal time and to be separable from the vehicle body when a predetermined collision load is input to the member.
3. The vehicle-mounted structure of the non-contact power receiving device according to claim 1 or 2,
the magnetic member includes a vehicle-side magnetic member disposed on the vehicle side and a power transmission coil-side magnetic member disposed on the power transmission coil side,
the power transmission coil side magnetic member is disposed in the hollow portion of the power reception coil.
4. The vehicle-mounted structure of the non-contact power receiving device according to claim 1 or 2,
an electronic component including the resonance capacitor is disposed in the vicinity of the rear of the member.
5. The vehicle-mounted structure of the non-contact power receiving device according to claim 1 or 2,
the power receiving coil unit is formed such that: the height from the bottom surface of the central part of the upper surface in the front-rear direction of the vehicle body is lower than the height from the bottom surface of the front part and the rear part,
a hollow portion corresponding to the hollow portion of the power receiving coil among the portions of the power receiving coil unit is located in the central portion.
CN201780085100.0A 2017-01-30 2017-01-30 Vehicle-mounted structure of non-contact power receiving device Active CN110234532B (en)

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RU2717610C1 (en) 2020-03-24
US10870354B2 (en) 2020-12-22
CA3051817C (en) 2020-05-26
US20200047633A1 (en) 2020-02-13
JP6709518B2 (en) 2020-06-17
CN110234532A (en) 2019-09-13
CA3051817A1 (en) 2018-08-02
EP3575128B1 (en) 2022-09-28
EP3575128A1 (en) 2019-12-04
EP3575128A4 (en) 2020-02-12
WO2018138908A1 (en) 2018-08-02
MX2019008842A (en) 2019-09-09
JPWO2018138908A1 (en) 2020-02-13
MY183265A (en) 2021-02-18
KR102151500B1 (en) 2020-09-03

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